Another well-known construction product from Hecht & Efraim. Exterior panels for lightweight construction, made of cementitious compounds (concrete) and glass fibers to reinforce the panel. Master Panel is designed to withstand extreme conditions and has a wide range of uses: wet rooms (saunas, bathtubs, showers, mikvahs, etc.), exterior cladding for lightweight houses and outdoor storage areas. Comes in 8 and 10 mm thicknesses.